- PDB-6th3: Cryo-EM structure of p62-PB1 filament (S-type) -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: PDB / ID: 6th3
タイトル
Cryo-EM structure of p62-PB1 filament (S-type)
要素
Sequestosome-1
キーワード
CYTOSOLIC PROTEIN / Autophagy
機能・相同性
機能・相同性情報
brown fat cell proliferation / protein localization to perinuclear region of cytoplasm / regulation of Ras protein signal transduction / protein targeting to vacuole involved in autophagy / response to mitochondrial depolarisation / aggrephagy / Lewy body / negative regulation of toll-like receptor 4 signaling pathway / amphisome / regulation of protein complex stability ...brown fat cell proliferation / protein localization to perinuclear region of cytoplasm / regulation of Ras protein signal transduction / protein targeting to vacuole involved in autophagy / response to mitochondrial depolarisation / aggrephagy / Lewy body / negative regulation of toll-like receptor 4 signaling pathway / amphisome / regulation of protein complex stability / endosome organization / autophagy of mitochondrion / pexophagy / membraneless organelle assembly / phagophore assembly site / ubiquitin-modified protein reader activity / regulation of mitochondrion organization / regulation of canonical NF-kappaB signal transduction / Nuclear events mediated by NFE2L2 / aggresome / endosomal transport / intracellular membraneless organelle / K63-linked polyubiquitin modification-dependent protein binding / negative regulation of ferroptosis / temperature homeostasis / cellular response to stress / autolysosome / energy homeostasis / molecular sequestering activity / p75NTR recruits signalling complexes / NF-kB is activated and signals survival / NRIF signals cell death from the nucleus / Pexophagy / mitophagy / immune system process / sperm midpiece / inclusion body / signaling adaptor activity / ionotropic glutamate receptor binding / negative regulation of protein ubiquitination / positive regulation of autophagy / PINK1-PRKN Mediated Mitophagy / SH2 domain binding / autophagosome / protein kinase C binding / protein sequestering activity / sarcomere / response to ischemia / ubiquitin binding / positive regulation of long-term synaptic potentiation / positive regulation of protein localization to plasma membrane / macroautophagy / P-body / protein catabolic process / molecular condensate scaffold activity / PML body / receptor tyrosine kinase binding / Interleukin-1 signaling / autophagy / KEAP1-NFE2L2 pathway / Signaling by ALK fusions and activated point mutants / protein import into nucleus / intracellular protein localization / late endosome / Neddylation / signaling receptor activity / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / transcription by RNA polymerase II / cell differentiation / intracellular signal transduction / positive regulation of apoptotic process / intracellular membrane-bounded organelle / ubiquitin protein ligase binding / apoptotic process / protein kinase binding / protein-containing complex binding / glutamatergic synapse / enzyme binding / endoplasmic reticulum / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / mitochondrion / extracellular exosome / zinc ion binding / nucleoplasm / identical protein binding / cytosol / cytoplasm 類似検索 - 分子機能
ジャーナル: Nat Commun / 年: 2020 タイトル: Structural basis of p62/SQSTM1 helical filaments and their role in cellular cargo uptake. 著者: Arjen J Jakobi / Stefan T Huber / Simon A Mortensen / Sebastian W Schultz / Anthimi Palara / Tanja Kuhm / Birendra Kumar Shrestha / Trond Lamark / Wim J H Hagen / Matthias Wilmanns / Terje ...著者: Arjen J Jakobi / Stefan T Huber / Simon A Mortensen / Sebastian W Schultz / Anthimi Palara / Tanja Kuhm / Birendra Kumar Shrestha / Trond Lamark / Wim J H Hagen / Matthias Wilmanns / Terje Johansen / Andreas Brech / Carsten Sachse / 要旨: p62/SQSTM1 is an autophagy receptor and signaling adaptor with an N-terminal PB1 domain that forms the scaffold of phase-separated p62 bodies in the cell. The molecular determinants that govern PB1 ...p62/SQSTM1 is an autophagy receptor and signaling adaptor with an N-terminal PB1 domain that forms the scaffold of phase-separated p62 bodies in the cell. The molecular determinants that govern PB1 domain filament formation in vitro remain to be determined and the role of p62 filaments inside the cell is currently unclear. We here determine four high-resolution cryo-EM structures of different human and Arabidopsis PB1 domain assemblies and observed a filamentous ultrastructure of p62/SQSTM1 bodies using correlative cellular EM. We show that oligomerization or polymerization, driven by a double arginine finger in the PB1 domain, is a general requirement for lysosomal targeting of p62. Furthermore, the filamentous assembly state of p62 is required for autophagosomal processing of the p62-specific cargo KEAP1. Our results show that using such mechanisms, p62 filaments can be critical for cargo uptake in autophagy and are an integral part of phase-separated p62 bodies.
Sequestosome-1 / EBI3-associated protein of 60 kDa / p60 / Phosphotyrosine-independent ligand for the Lck SH2 domain ...EBI3-associated protein of 60 kDa / p60 / Phosphotyrosine-independent ligand for the Lck SH2 domain of 62 kDa / Ubiquitin-binding protein p62